Heat insulated receptacle



I July 21, 1936. A. DW 4 2,048,583

HEAT INSULATED RECEPTACLE Filed April 14, 1934 INVENTORQ AL LEN 0.. WH/PPLE,

ATTORNEY.

Patented July 21, 1936 UNITED STATES PATENT 7 "OFFICE -HEAT' I SULATED RECEPTACLE Allen D. Whipple, Alexandria, Ind., assignor to The Mantle Lamp Company of America, Chicage, 11]., a corporation of Illinois Application April 14, 1934, Serial No. 720.587

15 Claims.

The invention relates to. heat-insulated receptacles of the non-vacuum type, wherein a of thejacket, the novelconstruction of a drinking up w c may .be usedpas a closure for thecontainer, andnovel means for securing said drinking cup to the receptacle.

The invention also includes I tures of construction which hereinafter will be explained.

Thefigure of the drawing'is a vertical sectional view of a receptacle involving the several features of the invention. f

The vitreous container 1,-preferably, is made of heat-resisting opal glass, or of crystal glass exteriorly coated with a reflecting or white enamel 2 which, not only obscures the unsightly environing .elements of the receptacle, but imparts to the container a cleanly and attractive appearance, and additionally reflects heat rays which, if not reflected, wouldbe radiated and lost.

* more :than tworparts of sheet metal, but, preferably, is made .of twopartsd', :5 which are prefer ably united by a circumferential spun seam "6.

The container and-the jacket '3-1respectively 40, ,are provided with necks 1],8 which enable said container .1- ;to;;be pendulouslysupported from the upper extremity of said jacket, to :be .out of' heat- I construction of the container, novel means :for securing the neck of the container to the neck other novel .fea f The protective jacket 3 may be made of two or I the. neck 8 constitutes a bond and a hermetical seal which; notonly unites said container I and said jacket 3, butprevents liquids and moisture from entering the space between theirwalls.

Receptacles of the type herein described areffrequently carried in automobiles or usedlby pic- .5.

nickers, and, consequently, must be able to sustain the shocks occasioned by rough usage. They may be large enough to contain a gallon or more of liquid ora food product. When the receptacle is filled and is subjected to a lateral shock, as for 10 instance, when it is thrown down on its side, a considerable leverage will be exerted-atthepointi of union between thenecksoi constituent elej mentswhich, if the gasket l3 were ,toorigid and resistant, would be. likely to break the frangible l5 neck of the vitreous container 1. This danger is obviated by theyielding of the gasket L3 which reduces the strain on the neckof the container.

The yielding characteristic of said-gasket, furv f thermore guards the frangible 'neck of the container I from shocks directly applied to theneck,

of the jackethii, suchshocks being largely-ab.- sorbedby saidgasket, and-prevented from reacl'iing the neck of the container with maximum force. I .Apacking Miof comminuted cork or other suitable shockand heat-insulating substance,"is disposed between the bodies of the container I and the jacket 3. Thissubstance.isfsufl'icientlyzpacked to avoid suchrearrangement of its particles while in service as would reduce its resistance and ren- I der it unable to restrain .pendulous movements of said container I and thus assist the gasket B in relieving the neck -l of strains .due to those pendulousmovements. This packing, furthermore, while. it does not operate to sustain the. container l, acts to prevent a circulationof the.

. air within the space between that container and the jacket '3 which, if permitted, would C0nVe,Cr-. tively carry heat from one of these elements to the-otherand soon equalize theinternal and .external temperatures and render the heat-insulatedreceptacle useless insofaras its heat-insulating function is concerned. This packing 1'4 must be.

kept dry, since, if moistened, it would become: a.

good conductor of heat and readily transfer heat from the container l to thejacket 3. Its dryness is assured by the fact that the compressed gasket l3 hermetically seals the entrance. to the space between the container and-the jacket and preventsiliiquids which are used .in cleaning the receptacle fromreaching said packing. If desired, an adhesive-may be used to permanently and adherentlyunite the gasket. |3 to the container an the jacket. I g g g V Retention of heat in the container l is :en-

a hanced'by giving it a substantially globular form, to thereby minimize the area from which heat energy is dissipated, it being true that the superficial area of a hollow sphere, relatively to its capacity, is less than that of a hollow body of any other shape. Due to this fact, it is possible to slightly reduce the thickness of the insulation between the container and the jacket while main- 7 taining the full efiiciency of previous structures of other shapes in which insulation of even oneinch thickness has been employed. 7 V

, The jacket 3 may alsobe given a substantially globular form, as shown, in order that itsheatboth of which minimize heat radiation and delay the equalization of internal and external temperatures. V t 7 u l The closure of the retainer is a heat-insulating stopper, [5 which is, preferably, made of glass or similar, vitreous material. This stopper is protainerso as to provide'an air-insulating cavity ll therebetween. 'Said stopper is also provided a with anexternal 'horiz'ontal fiangelt that termi- 7 preferably, isornamented so as to obscure the rubbergaSket 20, 'as well, as the. contents of the natesina downwardlyprojecting guide flange I9 2 which 'encirclesthe, upper portion of the'neck 1 otthe" container ,1, and also of the neck 8 of the jacket 3', and'is of such diameter as to maintain the downwardly-projecting wall I6 of the stopper out of contact with the neck I of the container I.

'Sa'id' fi-ange' [9 also prevents dirt from reaching and soiling the upper endof the receptacle, and,

receptacle, said rubber gasket'beingidisposed between the stopper I5 and the upperedge of the receptacle ,7 t r This gasket fits and is held in the cavity formed bythe wall l6 and the flanges' lq and IS of the stopper l5.

1 The aforesaid stopperlis'hollow and serves also as a drinking .cup which,,because of. its construction; cannot turn over, and if tilted tends to right 7 itself.

Furthermore: since the exterior element thereof which is the-guide flange l9,'is disposed at a considerable distance from the body of. said stopper, it'will' remain cool and will not be too hot, to be grasped by the hand of the user.

The 'jacket'3 is provided at its top' with ears 1 21 to which a bail 22 is pivoted. This bail is used when the receptacle is to be carried, Pivoted to preferably, carryinga ball 24 which engages a receiving cavity 25in the top ofthe stopper I5 to V 7 thereby hold said stopper in position, this' ba'll being revoluble on'said bail 237so as to provide a rolling, and lo'w-friction'deviee which will not injure such ornamentation as; said stopper may possess; The stopper is provided withgriiding cavities' lfi for said ball, leading to said receiving cavity 251 in which said ball 24 will be held by V the spring action of saidbail 23 when the stopper i [5 is. locked in position.

. -.The use of the above-described means for holding the stopper. in position on the receptacle, eliminates; the expensive screw-threaded collars constituting parts .of" the protectivejackets of thesesameears is another and resilientb'ail 23, T a"bafl'apivotedOmsaid'jacket a In such known devices, the stoppers are not, while ,the' locking devices therefor are drinking cupsz Thus the combination drinking cup and stopper herein described, is a structure which admits of manufacture at little cost, possesses more utility 5' than those devices of similar nature which, heretofore, have been produced and permits the use of a construction for the finished receptacle con- SlStiIE of fewer and cheaper parts. i 1

Having thus. described my invention, what 1 1 groove, and aprotecti ve jacket surrounding said' container and provided with an upper end portion compressed against said gasket and into said' 'grdOveythereby positively interlocking the gasket with the adjacent parts of the container and the 20 jacket, 7 r f2; reheat-insulatedreceptacle, includinga protective jacket, a vitreous container enclosed by u u 7 said jacket, a hollow vitreous stopperfor said vided'with a downwardly-projecting wall l6 which is'sli'ghtly spacedfrom the neck I of the concontainer, sai-dstopper having a' depending. wall container, said'stopper havinga depending wall 5 L of slightlyless diameter than that of the inner upper end of said'container and beingprovid'ed of slightly' lessdiameter than that of the inner upper end of said container and being provided with a downwardly projecting guide flange which surrounds theupperjen-d of said receptacle, and r a resilient gasket disposed between said depending, wall and,said downwardlyprojecting flange 40 j and restingonvthe upper end ofsaid receptacle,

said guide flange beings: such diameter as to .hold said depending wall out of oontactwi-th said containerl 4'. A heatinsulated receptacIeQincludingecon-r I;

tainer, a protective jacket, a closure for said con=-.

tainer consisting of a unitary stopper and drinki p Y ing cup, said closure having a depression in its top, anda bail pivoted onsaid jacket and provided with a ball for engaging said depression. 50

5. A heat-insulated receptacle, including acon-' L l tainer, a protectivejacketEa closure for said con- I tainer consisting' of a unitary'stopper anddrink mg cup, said closure having a' depression in its tainer, a protective jacket, a closure for said con- 60 tainer consisting of a unitary stopper and drinkingw cup, ears carried by said jacket, a lifting r bail pivoted on said ears, and a'further bailfor; securing saidjclosure in positionalso pivoted on a said ears.

'7. A stopper for a heat-insulated receptacle, 7 comprising a cup-shaped piece of vitreous material' having an exterior horizontal flange which is disposed between its upper and lower ends,

and a further flange extending from saidjhorie zontal flange and constituting a heatrinsula'ted me f d JS QP Q Te 8. A combined stoppe heat-insulated receptacle including a hollow body] portion; a; horizontal :flange extending'laterally,

a amant cup f r. a

from and between the upper and lower ends of said body portion, a terminal flange extending from and disposed at an angle to said horizontal flange, and an internal depending flange that is longer than said terminal flange.

9. The process of producing a heat-insulated receptacle, which involves the assembling of a vitreous container, a yielding gasket surrounding the neck of said container, and a protective jacket having a neck surrounding said gasket, and finally, forcing the neck of said jacket against said gasket to thereby unite said container and said jacket and hermetically seal the entrance to the space between said container and said jacket.

10. A stopper for a heat-insulated receptacle, including a hollow body portion having external supporting means disposed between its upper and lower ends, said hollow body portion extending above and far enough below said external supporting means to substantially amplify its capacity and render it available as a drinking cup.

11. A unitary stopper and drinking cup, including a hollow body portion having an external horizontal flange extending laterally from and between the upper and lower ends of said body portion, a terminal flange extending from and disposed at an angle to said horizontal flange, an internal depending flange that is longer than said terminal flange, a cavity in its top for the reception of a locking element, and guiding grooves leading to said cavity. I

12. A heat-insulated receptacle including a container, a protective jacket, a closure for the mouth of said container consisting of a. hollow body portion that is closed at one end and open at the other end and has an external supporting flange, to thereby constitute a combination stopper and drinking cup, and means for holding said closure on said receptacle.

13. A heat-insulated receptacle according to claim 12 wherein the holding means is permanently attached to said receptacle.

14. A heat-insulated receptacle, including a vitreous container having exterior detents forming a groove at its upper end, a yielding gasket disposed between said detents, and a protective jacket surrounding said'container and provided with an inwardly-spun upper end which bears against and holds said gasket under compression 20 in said groove.

15. A heat-insulated receptacle including a container, an outer protective jacket, a closure for said container, a gasket disposed between the container and said closure, means on the 25 receptacle for retaining the closure in position thereon, said closure at its lower end comprising a drinking cup extending into the neck of the container.

ALLEN D. WHIPPLE. 

